Please see my posts here:

http://neurotalk.psychcentral.com/post1046192-4.html
http://neurotalk.psychcentral.com/post1041258-10.html

Many of us eat/take Omega-3 fatty acids in some form. Here are some references I found on how to get your omega-3:
http://www.hsph.harvard.edu/nutritionsource/omega-3/
http://nutritionfacts.org/questions/...eal-omega-369/
http://nutritionfacts.org/video/plan...supplements-2/
http://nutritionfacts.org/video/alga...dha-vs-flax-2/

I urge you to obtain your DHA and EPA from whole plant sources such as ground flaxseed , chia seeds, and walnuts. This way you get benefit of all the other nutrients in those foods.

Many of us also take multi-vitamins and vitamin B-12 as methylcobalamin, something like 1000 mcg per day.

Ron